Fine tuning the Lego spectrometer more.
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Fine tuning the Lego spectrometer more.
Using a maglite as the source eliminates the need for a separate collimating lens.
I also switched away from the very flaky variable slit made of a sliding brick that wouldn't stay in place if you looked at it wrong.
After some failed experiments with aluminum foil, I discovered that the round tree trunk Duplo brick was a tiny bit smaller than a nominal square 2x2 brick. When placed next to a square brick and locked in place with a plate on top you get a very consistent, repeatable slit that I'd ballpark as somewhere around 200 μm.
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Fine tuning the Lego spectrometer more.
Using a maglite as the source eliminates the need for a separate collimating lens.
I also switched away from the very flaky variable slit made of a sliding brick that wouldn't stay in place if you looked at it wrong.
After some failed experiments with aluminum foil, I discovered that the round tree trunk Duplo brick was a tiny bit smaller than a nominal square 2x2 brick. When placed next to a square brick and locked in place with a plate on top you get a very consistent, repeatable slit that I'd ballpark as somewhere around 200 μm.
Comparing spectra of the incandescent and white LED bulbs
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Comparing spectra of the incandescent and white LED bulbs
We've looked at absorbance spectra of a bunch of magnatiles but she doesn't quite get all the details I'm trying to explain.
The joys of trying to teach a preschooler physics lol. (Having Paisley's Corner playing in the background was also a bit of a distraction but she insisted)
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undefined aeva@mastodon.gamedev.place shared this topic
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We've looked at absorbance spectra of a bunch of magnatiles but she doesn't quite get all the details I'm trying to explain.
The joys of trying to teach a preschooler physics lol. (Having Paisley's Corner playing in the background was also a bit of a distraction but she insisted)
@azonenberg That looks cool! What method are you using? Have you guys tried a cloud chamber? My kiddo really loved that.
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@azonenberg That looks cool! What method are you using? Have you guys tried a cloud chamber? My kiddo really loved that.
@Lee_Holmes 4.5 might be a little young for a cloud chamber.
But I'll definitely play with one later on
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undefined oblomov@sociale.network shared this topic
Gli ultimi otto messaggi ricevuti dalla Federazione
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@yuki2501 the whole thing it's so shitty, it's easy to let some slip
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Arcas De Disco (@puckarks.bsky.social)
https://bsky.app/profile/puckarks.bsky.social/post/3me365qtmfs2l
> For those of you not familiar: “Anondown" is a hashtag and term used by us in the Anonymous hacktivist/activist community used to announce the death of one of our own. A somber signal to all of a fallen digital or street soldier often both.
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Arcas De Disco (@puckarks.bsky.social)
https://bsky.app/profile/puckarks.bsky.social/post/3me365qtmfs2l
> For those of you not familiar: “Anondown" is a hashtag and term used by us in the Anonymous hacktivist/activist community used to announce the death of one of our own. A somber signal to all of a fallen digital or street soldier often both.
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@JordiGH this is a pretty good trick question. Most people would assume that this is an excuse to use 25% more peanut butter, but the correct answer is obviously 33.(3)% more, so the follow up question is: did the kid some the problem correctly, or did they fall into the trap and consumer less than they could have?
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@oblomov Ah, right.
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@ShadSterling @mcc (trying to resist the temptation to cc in the actual author, he's on here)
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@yuki2501 missing the Russian flag too
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@salvador it's so nice and so cheap!
